CYAT81652-100AS48T

Overview

The CYAT81652-100AS48T is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch PSOC-based family. It features an Arm Cortex CPU and supports I2C and SPI interfaces. The device operates within a voltage range of 1.71 V to 5.5 V, with a maximum operating current of 20 mA. It is housed in a TQFP-100 package suitable for SMD/SMT installation. The component is rated for industrial temperatures, functioning between -40°C and +105°C. This controller is designed for high-performance touch sensing applications requiring robust processing capabilities.

Feature Summary

• Integrated Arm Cortex CPU for advanced signal processing
• Supports both I2C and SPI communication interfaces
• Wide operating temperature range from -40°C to +105°C
• Capacitive touch sensing technology with low power consumption

Applications

• Automotive infotainment systems
• Industrial control panels
• Consumer electronics with high durability requirements

Procurement Notes

Verify the exact suffix 'AS48T' against official Infineon documentation to confirm pinout, packaging, and temperature grade specifications. Ensure compatibility with existing PCB layout and firmware drivers before procurement. Check for RoHS compliance status in the latest datasheet.

Selection Notes

Select this model when a combination of automotive-grade temperature ratings (-40°C to +105°C) and flexible interface options (I2C/SPI) is required. The TQFP-100 package offers ample GPIO availability for complex touch sensor arrays. Compare against the CYAT81652-100AA48T if a lower commercial temperature range (+85°C max) is sufficient for the application.

Part Context

This component belongs to the CYAT8165x series of TrueTouch controllers. These devices integrate programmable mixed-signal capabilities with capacitive touch sensing. The series is designed to replace discrete touch solutions, offering integrated processing for gesture recognition and noise immunity in demanding environments.

Replacement Considerations

Direct substitutes include other members of the CYAT8165x family such as CYAT81652-100AA48T, provided the temperature rating difference is acceptable. Verify pin-to-pin compatibility and firmware support for any cross-model replacements.